Portal de investigação
Ionizing Radiation from Radiopharmaceuticals and the Human Gut Microbiota: An Ex Vivo Approach
Data de publicação:
Autores da FMUP
Participantes de fora da FMUP
- Fernandes, A
- Oliveira, A
- Guedes, C
- Fernandes, R
- Barata, P
Unidades de investigação
Abstract
This study aimed to determine the effect of three widely used radiopharmaceuticals with intestinal excretion on selected relevant bacteria that are part of the human gut microbiota, using an ex vivo approach. Fecal samples obtained from healthy volunteers were analyzed. Each sample was divided into four smaller aliquots. One served as the non-irradiated control. The other three were homogenized with three radiopharmaceutical solutions ([I-131]NaI, [Tc-99m]NaTcO4, and [Ra-223]RaCl2). Relative quantification of each taxa was determined by the 2(-Delta Delta C) method, using the ribosomal gene 16S as an internal control (primers 534/385). Twelve fecal samples were analysed: three controls and nine irradiated. Our experiment showed fold changes in all analyzed taxa with all radiopharmaceuticals, but results were more significant with I-131, ranging from 1.87-83.58; whereas no relevant differences were found with Tc-99m and Ra-223, ranging from 0.98-1.58 and 0.83-1.97, respectively. This study corroborates limited existing research on how ionizing radiation changes the gut microbiota composition, providing novel data regarding the ex vivo effect of radiopharmaceuticals. Our findings justify the need for future larger scale projects.
Dados da publicação
- ISSN/ISSNe:
- 1661-6596, 1661-6596
- Tipo:
- Article
- Páginas:
- -
- Link para outro recurso:
- www.scopus.com
International Journal of Molecular Sciences Multidisciplinary Digital Publishing Institute (MDPI)
Citações Recebidas na Web of Science: 3
Citações Recebidas na Scopus: 5
Documentos
- Não há documentos
Filiações
Keywords
- radiation toxicity; commensal microbiota; radiopharmaceuticals; radioiodine; Radium-223; Technetium-99m; ionizing radiation; gut microbiota
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Citar a publicação
Fernandes A,Oliveira A,Guedes C,Fernandes R,Soares R,Barata P. Ionizing Radiation from Radiopharmaceuticals and the Human Gut Microbiota: An Ex Vivo Approach. Int. J. Mol. Sci. 2022. 23. (18):10809. IF:5,600. (1).
